WAEC - Mathematics (2017 - No. 7)

If x = \(\frac{2}{3}\) and y = - 6, evaluate xy - \(\frac{y}{x}\)
0
5
8
9

Explanation

x = \(\frac{2}{3}\) and y = - 6

xy - \(\frac{y}{x}\)

\(\frac{2}{3} - (6)^2 - (-6) \div \frac{2}{3}\)

= -4 - (6) x \(\frac{3}{2}\)

= -4 - (-6) x \(\frac{3}{2}\)

= -4 - (-9)

= -4 + 9

= 5

 

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